EXCALIBUR: The Forbidden Book. Knowledge or madness?

“Excalibur” (popularly known as “Excalibur: A Gateway to the Madhouse”) is a legendary unpublished manuscript written in 1938 by L. Ron Hubbard, who would go on to found Dianetics and Scientology years later. The work is considered one of the most famous “cursed texts” of the 20th century within pulp literature and modern occult circles, and it has been repeatedly claimed that it can drive anyone who reads it mad.



L. Ron Hubbard.

L. Ron Hubbard (1911–1986) was a prolific American author of the Golden Age of pulp magazines, renowned for his astonishing speed in writing adventure, sea, Western, and science fiction stories under numerous pseudonyms. After a youth marked by travels to Asia and the Pacific due to his father’s service in the U.S. Navy, Hubbard developed a compulsive fascination with stories of exploration, which he soon channeled into the popular literature of 1930s New York. During this period of intense creative activity, he began experimenting with hypnosis and became obsessed with the mysteries of the human mind and the search for a unified philosophical explanation.



Origin.

After establishing his reputation as a tireless writer of pulp fiction and deepening his curiosity about the mysteries of the subconscious, the true catalyst for "Excalibur" occurred in 1938 during a minor surgical procedure. According to Hubbard himself, an adverse reaction to anesthesia during a tooth extraction caused him to suffer cardiac arrest and remain clinically dead for approximately eight minutes. It was during that brief hiatus from life that he claimed to have experienced a transcendental revelation about the workings of human existence and the universal laws of the mind.

Deeply moved by the experience, he compulsively shut himself away for weeks in an apartment in Port Orchard, Washington, writing day and night until he poured that supposed epiphany into a text of about 70,000 words, which he originally named after King Arthur’s legendary sword to symbolize a tool capable of cutting through the blindness of ignorance.



Content.

“Excalibur” opens with an allegorical parable that sets the tone for the entire work: the story of a legendary king who entrusts the sages of his kingdom with the task of gathering all the knowledge and wisdom in the world. After years of work, the scholars return with thousands of volumes, but the king, now old and weary, demands that they condense that knowledge into a manageable fraction. The process of condensation is repeated successively: from thousands of volumes to a hundred books, from a hundred books to a single chapter, until finally the sages manage to synthesize all of existence into a single, devastatingly revealing phrase. With this story, Hubbard sought to justify his own attempt to strip philosophy and psychology of their theoretical trappings in order to offer an absolute universal law.

Based on this premise, the book unfolds not as a work of fiction, but as a rigorous philosophical and psychological treatise with claims to mathematical precision. The conceptual core of the text revolves around a single, fundamental command: “Survive!” Hubbard argues that absolutely every form of life, from the most basic cellular structure to the most complex thought processes of human beings, responds to this biological and existential directive. In the manuscript, human behavior, fears, ambition, and madness are nothing more than ramifications of how the psyche calculates and executes its survival strategy in response to the environment.

Likewise, “Excalibur” outlines the first concepts of the mind understood as an analytical computer. The text posits that the brain processes data logically to solve problems related to the continuity of life, but that erroneous perceptions or traumas disrupt those calculations, leading to behavioral aberrations. It is precisely in these pages that Hubbard first conceives the theoretical framework of what he would publish twelve years later as “Dianetics: The Modern Science of Mental Health,” introducing embryonic concepts regarding the mechanisms of the subconscious, memory, and the pursuit of an optimized state of consciousness free from blocks.



Urban legend.

The nickname “A Gateway to the Madhouse” stems from the urban legend surrounding the manuscript’s psychological impact. After completing the text in 1938, Hubbard distributed typewritten copies to friends, publishers, and science fiction writers in New York, but popular accounts claim that several of those early readers suffered panic attacks, nervous breakdowns, or ended up confined to psychiatric institutions. It is even said that one editor returned the work in a state of terror following the alleged catatonia or suicide of one of his reviewers, which led Hubbard to withdraw the text from commercial circulation after concluding that society was not ready for such a truth.



Occultism.

In the mid-1940s, the story of “Excalibur” took an even darker turn as it became directly intertwined with the currents of Western occultism. In 1945, after completing his military service, Hubbard moved to Pasadena, California, where he formed a close friendship and lived alongside the renowned rocket scientist and occultist Jack Parsons, who led the Agape Lodge of the Ordo Templi Orientis (O.T.O.) and was a direct disciple of the famous British magus Aleister Crowley. In that esoteric environment, Hubbard actively participated as a “scribe” in the Babalon Workings, a series of complex ceremonial magic rituals designed to invoke and embody the Thelemic entity known as the Scarlet Woman.

It was in the context of these magical experiments that the theories outlined years earlier in "Excalibur" took on a new spiritual dimension. Researchers of 20th-century esoteric movements note that Hubbard began to reinterpret his concept of the primordial survival instinct and the reprogramming of the mind through the lens of “Will” (Thelema) as proposed by Crowley. The ideas in the unpublished manuscript, which were originally intended to serve as a pragmatic psychological and scientific framework, incorporated elements of ceremonial mysticism, the quest for the superman, and the transcendence of the limits of physical reality, fusing the myth of “Excalibur” with ritual magic just before the final development of Dianetics.

"Whore of Babylon." Painted by Gnostic Saint William Blake in 1809.


Current status.

To this day, “Excalibur” remains unpublished and has never been formally released by either the Church of Scientology or independent publishers. Although its fundamental principles were incorporated into the early writings of Dianetics, the manuscript retains a mythical status within the organization, with special copies having been safeguarded in its historical vaults, inaccessible to the general public.

However, there are collections of essays, historical notes, biographical excerpts, and doctrinal texts in digital format circulating online that are often shared misleadingly or passed off as the original manuscript.

PDF shared as the original book featuring the cover of the 1981 film “Excalibur.”

E. NYGMA

Writer and founder of ZD TERROR. Lover of the macabre and dark, the absurd and black humor. Influenced by artists such as Stephen King, Edgar Allan Poe, Darren Bousman, Rob Zombie, James Wan, Marian Dora, David Lynch, Quentin Tarantino, Christopher Nolan, Zack Snyder, among others. Future filmmaker.

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